IBM 64-256KB Memory Expansion

This 8-bit ISA expansion card adds between 64KB and 256KB of RAM to an IBM-compatible PC. The RAM is added in four banks, with each bank consisting of eight memory chips to store data and one memory chip to store a parity bit.

Identifying marks:

  • 1501989 433 V0011
  • 5510003

Date : 1986

Manufacturer : IBM

Format : Expansion Board

This exhibit has a reference ID of CH46120. Please quote this reference ID in any communication with the Centre for Computing History.

Scan of Document: IBM 64-256KB Memory Expansion

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